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Rheology of granular liquids in extensional flows: Beyond the μ(I)-law

Autor: Matthias Sperl, O. Coquand

Publikováno v: Physical review. E. 104(1-1)

The Granular Integration Through Transients (GITT) formalism gives a theoretical description of the rheology of moderately dense granular flows and suspensions. In this work, we extend the GITT equations beyond the case of simple shear flows studied

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::739b478d61da8a73746471d78117c7a2
https://pubmed.ncbi.nlm.nih.gov/34412321

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Wrinkling transition in quenched disordered membranes at two loops

Autor: D. Mouhanna, O. Coquand

Publikováno v: Phys.Rev.E
Phys.Rev.E, 2021, 103, pp.031001. ⟨10.1103/PhysRevE.103.L031001⟩

One investigates the flat phase of quenched disordered polymerized membranes by means of a two-loop, weak-coupling computation performed near their upper critical dimension $D_{uc} = 4$, generalizing the one-loop computation of Morse, Lubensky and Gr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a5adfdc22a2bf1f457a3c466a8fcf70
http://arxiv.org/abs/2011.01550

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Integration through Transients approach to the µ(I) rheology

Autor: W. T. Kranz, Matthias Sperl, O. Coquand

This work generalizes the granular integration through transients formalism introduced by Kranz et al. [Phys. Rev. Lett. 121, 148002 (2018)] to the determination of the pressure. We focus on the Bagnold regime and provide theoretical support to the e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cd25d6864c3ca25aef4e79eb7187d2b
https://doi.org/10.1103/physreve.102.032602

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Flat phase of polymerized membranes at two-loop order

Autor: O. Coquand, D. Mouhanna, Sofian Teber

Publikováno v: Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2020, 101 (6), pp.062104. ⟨10.1103/PhysRevE.101.062104⟩

We investigate two complementary field-theoretical models describing the flat phase of polymerized - phantom - membranes by means of a two-loop, weak-coupling, perturbative approach performed near the upper critical dimension $D_{uc}=4$, extending th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5080c5265ed40610cf05c23a06b09713
https://doi.org/10.1103/physreve.101.062104

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Universal behaviors in the wrinkling transition of disordered membranes

Autor: D. Mouhanna, K. Essafi, O. Coquand, J.-P. Kownacki

Publikováno v: Physical Review E
Physical Review E, American Physical Society (APS), 2020, 101 (4), ⟨10.1103/PhysRevE.101.042602⟩

The wrinkling transition experimentally identified by Mutz et al. [Phys. Rev. Lett. 67, 923 (1991)] and then thoroughly studied by Chaieb et al. [Phys. Rev. Lett. 96, 078101 (2006)] in partially polymerized lipid membranes is reconsidered. One shows

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f69b117b6a4602efabc85d30fb2c7eae
https://doi.org/10.1103/physreve.101.042602

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Temperature expansions in the square-shoulder fluid. II. Thermodynamics

Autor: O. Coquand, Matthias Sperl

Publikováno v: The Journal of chemical physics. 152(12)

In a companion paper, we derived analytical expressions for the structure factor of the square-shoulder potential in a perturbative way around the high- and low-temperature regimes. Here, various physical properties of these solutions are derived. In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a4703296ea5068760be183511b69c4
https://pubmed.ncbi.nlm.nih.gov/32241153

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Temperature Expansions in the Square-Shoulder Fluid I: the Wiener-Hopf Function

Autor: O. Coquand, Matthias Sperl

We investigate the spatial structure of dense square-shoulder fluids. To this end we derive analytical perturbative solutions of the Ornstein-Zernike equation in the low- and high-temperature limits as expansions around the known hard sphere solution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::791ae5a49aafabe99bbafa904ad187ab
http://arxiv.org/abs/1912.06574

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Spontaneous symmetry breaking and the flat phase of crystalline membranes

Autor: O. Coquand

Publikováno v: Phys.Rev.B
Phys.Rev.B, 2019, 100 (12), pp.125406. ⟨10.1103/PhysRevB.100.125406⟩

Crystalline membranes are one of the rare examples of bidimensional systems in which long-range order can stabilise an ordered phase in the thermodynamic limit. By a careful analysis of the Goldstone modes counting, we propose a symmetry breaking mec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3666798f9026159376e45849e73e0674

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Glassy phase in quenched disordered crystalline membranes

Autor: O. Coquand, D. Mouhanna, J.-P. Kownacki, K. Essafi

Publikováno v: Phys.Rev.E
Phys.Rev.E, 2018, 97 (3), pp.030102. 〈10.1103/PhysRevE.97.030102〉
Phys.Rev.E, 2018, 97 (3), pp.030102. ⟨10.1103/PhysRevE.97.030102⟩
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2018, 97 (3), pp.030102. ⟨10.1103/PhysRevE.97.030102⟩

We investigate the flat phase of $D$-dimensional crystalline membranes embedded in a $d$-dimensional space and submitted to both metric and curvature quenched disorders using a nonperturbative renormalization group approach. We identify a second-orde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8d324726f41e3b42248ef0821a567cf
https://doi.org/10.1103/physreve.97.030102

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